Thanks for the query.
You should not use emergency contraceptive
repeatedly as that can affect the fertility.
So possibly your anovulation
could be side effect of this.
You once consult gynecologist, undergo hormonal evaluation and take tablets for ovulation induction
. After that go for follicular study
, possibly this can work.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429